The 26-year-old moved to Zenit St Petersburg last summer after four impressive seasons at Porto, but his time in Russia has not been straightforward, particularly in view of some fans' opposition to non-white players.

Asked about Chelsea's reported interest, Hulk said in the Daily Telegraph: "If I said there wasn't anything in it, I would be lying.

"But that is not for now. At the moment, I am 100 per cent focused on Brazil and I hope to be a Confederations Cup winner with my country. Other matters will have to wait until afterwards."

Mourinho is widely expected to bring in reinforcements to his forward line, with Fiorentina's Stevan Jovetic and Edin Dzeko of Manchester City also linked.